It is called the Kinetic Energy of rotation of the Earth. The amount of rotational energy that the Earth has is astounding! We will see below the math that proves the published value of that energy is 2.137 * 1029 Joules or watt-seconds. I would point out here that this amount of existing "spinning energy" of the Earth is around 60,000,000,000 times that TOTAL ELECTRIC USAGE of all Americans for an entire year! And is at least a billion times ALL the energy that has EVER been created and used by humans during all of civilization!..